From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D67DBC1B0F1 for ; Tue, 19 Jun 2018 22:28:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 97F18208A6 for ; Tue, 19 Jun 2018 22:28:25 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 97F18208A6 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linux-foundation.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753944AbeFSW2X (ORCPT ); Tue, 19 Jun 2018 18:28:23 -0400 Received: from mail.linuxfoundation.org ([140.211.169.12]:33536 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751651AbeFSW2W (ORCPT ); Tue, 19 Jun 2018 18:28:22 -0400 Received: from akpm3.svl.corp.google.com (unknown [104.133.9.92]) by mail.linuxfoundation.org (Postfix) with ESMTPSA id 647CCFE0; Tue, 19 Jun 2018 22:28:22 +0000 (UTC) Date: Tue, 19 Jun 2018 15:28:21 -0700 From: Andrew Morton To: Christian Hansen Cc: xe-linux-external@cisco.com, linux-kernel@vger.kernel.org Subject: Re: [PATCH] tools: modifying page-types to include shared map counts Message-Id: <20180619152821.9f1822d1d31be8e8b749588a@linux-foundation.org> In-Reply-To: <20180612153205.12879-1-chansen3@cisco.com> References: <20180612153205.12879-1-chansen3@cisco.com> X-Mailer: Sylpheed 3.6.0 (GTK+ 2.24.31; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 12 Jun 2018 11:32:05 -0400 Christian Hansen wrote: > Adding a new flag that will read kpagecount for each PFN > and print out the number of time the page is mapped along > with the flags in the listing view. Also... the above describes what the patch does, but not why it does it. Why do you believe this change is desirable? What is the benefit, what is the use-case?